#include <iostream>

using namespace std;

int main(void)
{
	double a, b, c;

	cin >> a;
	cin >> b;
	cin >> c;
	if(a > b)
	{
		if(a > c)
			cout << a << endl;
		else
			cout << c << endl;
	}
	else
	{
		if(b > c)
			cout << b << endl;
		else
			cout << c << endl;
	}

	return 0;
}
